This revision was automatically updated to reflect the committed changes.
Closed by commit rL345724: [analyzer][PlistMacroExpansion] Part 1.: New
expand-macros flag (authored by Szelethus, committed by ).
Herald added a subscriber: llvm-commits.
Changed prior to commit:
https://reviews.llvm.org/D52742?vs=171533&id=171921#toc
Repository:
rL LLVM
https://reviews.llvm.org/D52742
Files:
cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
cfe/trunk/test/Analysis/Inputs/expected-plists/plist-macros-with-expansion.cpp.plist
cfe/trunk/test/Analysis/plist-macros-with-expansion.cpp
Index: cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
@@ -72,6 +72,7 @@
const FIDMap& FM;
AnalyzerOptions &AnOpts;
const Preprocessor &PP;
+ llvm::SmallVector<const PathDiagnosticMacroPiece *, 0> MacroPieces;
public:
PlistPrinter(const FIDMap& FM, AnalyzerOptions &AnOpts,
@@ -86,6 +87,14 @@
(void)AnOpts;
}
+ /// Print the expansions of the collected macro pieces.
+ ///
+ /// Each time ReportDiag is called on a PathDiagnosticMacroPiece (or, if one
+ /// is found through a call piece, etc), it's subpieces are reported, and the
+ /// piece itself is collected. Call this function after the entire bugpath
+ /// was reported.
+ void ReportMacroExpansions(raw_ostream &o, unsigned indent);
+
private:
void ReportPiece(raw_ostream &o, const PathDiagnosticPiece &P,
unsigned indent, unsigned depth, bool includeControlFlow,
@@ -104,7 +113,8 @@
isKeyEvent);
break;
case PathDiagnosticPiece::Macro:
- ReportMacro(o, cast<PathDiagnosticMacroPiece>(P), indent, depth);
+ ReportMacroSubPieces(o, cast<PathDiagnosticMacroPiece>(P), indent,
+ depth);
break;
case PathDiagnosticPiece::Note:
ReportNote(o, cast<PathDiagnosticNotePiece>(P), indent);
@@ -123,14 +133,25 @@
unsigned indent, unsigned depth, bool isKeyEvent = false);
void ReportCall(raw_ostream &o, const PathDiagnosticCallPiece &P,
unsigned indent, unsigned depth);
- void ReportMacro(raw_ostream &o, const PathDiagnosticMacroPiece& P,
- unsigned indent, unsigned depth);
+ void ReportMacroSubPieces(raw_ostream &o, const PathDiagnosticMacroPiece& P,
+ unsigned indent, unsigned depth);
void ReportNote(raw_ostream &o, const PathDiagnosticNotePiece& P,
unsigned indent);
};
} // end of anonymous namespace
+namespace {
+
+struct ExpansionInfo {
+ std::string MacroName;
+ std::string Expansion;
+ ExpansionInfo(std::string N, std::string E)
+ : MacroName(std::move(N)), Expansion(std::move(E)) {}
+};
+
+} // end of anonymous namespace
+
static void printBugPath(llvm::raw_ostream &o, const FIDMap& FM,
AnalyzerOptions &AnOpts,
const Preprocessor &PP,
@@ -143,6 +164,10 @@
SmallVectorImpl<FileID> &Fids,
FIDMap &FM,
llvm::raw_fd_ostream &o);
+
+static ExpansionInfo getExpandedMacro(SourceLocation MacroLoc,
+ const Preprocessor &PP);
+
//===----------------------------------------------------------------------===//
// Methods of PlistPrinter.
//===----------------------------------------------------------------------===//
@@ -299,16 +324,52 @@
ReportPiece(o, *callExit, indent, depth, /*includeControlFlow*/ true);
}
-void PlistPrinter::ReportMacro(raw_ostream &o,
- const PathDiagnosticMacroPiece& P,
- unsigned indent, unsigned depth) {
-
- for (PathPieces::const_iterator I = P.subPieces.begin(), E=P.subPieces.end();
- I!=E; ++I) {
+void PlistPrinter::ReportMacroSubPieces(raw_ostream &o,
+ const PathDiagnosticMacroPiece& P,
+ unsigned indent, unsigned depth) {
+ MacroPieces.push_back(&P);
+
+ for (PathPieces::const_iterator I = P.subPieces.begin(),
+ E = P.subPieces.end();
+ I != E; ++I) {
ReportPiece(o, **I, indent, depth, /*includeControlFlow*/ false);
}
}
+void PlistPrinter::ReportMacroExpansions(raw_ostream &o, unsigned indent) {
+
+ for (const PathDiagnosticMacroPiece *P : MacroPieces) {
+ const SourceManager &SM = PP.getSourceManager();
+ ExpansionInfo EI = getExpandedMacro(P->getLocation().asLocation(), PP);
+
+ Indent(o, indent) << "<dict>\n";
+ ++indent;
+
+ // Output the location.
+ FullSourceLoc L = P->getLocation().asLocation();
+
+ Indent(o, indent) << "<key>location</key>\n";
+ EmitLocation(o, SM, L, FM, indent);
+
+ // Output the ranges (if any).
+ ArrayRef<SourceRange> Ranges = P->getRanges();
+ EmitRanges(o, Ranges, indent);
+
+ // Output the macro name.
+ Indent(o, indent) << "<key>name</key>";
+ EmitString(o, EI.MacroName) << '\n';
+
+ // Output what it expands into.
+ Indent(o, indent) << "<key>expansion</key>";
+ EmitString(o, EI.Expansion) << '\n';
+
+ // Finish up.
+ --indent;
+ Indent(o, indent);
+ o << "</dict>\n";
+ }
+}
+
void PlistPrinter::ReportNote(raw_ostream &o, const PathDiagnosticNotePiece& P,
unsigned indent) {
@@ -339,6 +400,12 @@
// Static function definitions.
//===----------------------------------------------------------------------===//
+static ExpansionInfo getExpandedMacro(SourceLocation MacroLoc,
+ const Preprocessor &PP) {
+ // TODO: Implement macro expansion.
+ return { "", "" };
+}
+
/// Print coverage information to output stream {@code o}.
/// May modify the used list of files {@code Fids} by inserting new ones.
static void printCoverage(const PathDiagnostic *D,
@@ -408,6 +475,14 @@
Printer.ReportDiag(o, **I);
o << " </array>\n";
+
+ if (!AnOpts.shouldDisplayMacroExpansions())
+ return;
+
+ o << " <key>macro_expansions</key>\n"
+ " <array>\n";
+ Printer.ReportMacroExpansions(o, /* indent */ 4);
+ o << " </array>\n";
}
//===----------------------------------------------------------------------===//
Index: cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -546,7 +546,8 @@
}
}
-static void CompactPathDiagnostic(PathPieces &path, const SourceManager& SM);
+static void CompactMacroExpandedPieces(PathPieces &path,
+ const SourceManager& SM);
std::shared_ptr<PathDiagnosticControlFlowPiece> generateDiagForSwitchOP(
@@ -1972,8 +1973,6 @@
PathDiagnosticLocation::createBegin(D, SM));
}
- if (!AddPathEdges && GenerateDiagnostics)
- CompactPathDiagnostic(PD->getMutablePieces(), SM);
// Finally, prune the diagnostic path of uninteresting stuff.
if (!PD->path.empty()) {
@@ -2007,6 +2006,10 @@
removeRedundantMsgs(PD->getMutablePieces());
removeEdgesToDefaultInitializers(PD->getMutablePieces());
}
+
+ if (GenerateDiagnostics && Opts.shouldDisplayMacroExpansions())
+ CompactMacroExpandedPieces(PD->getMutablePieces(), SM);
+
return PD;
}
@@ -2436,9 +2439,10 @@
return true;
}
-/// CompactPathDiagnostic - This function postprocesses a PathDiagnostic object
-/// and collapses PathDiagosticPieces that are expanded by macros.
-static void CompactPathDiagnostic(PathPieces &path, const SourceManager& SM) {
+/// CompactMacroExpandedPieces - This function postprocesses a PathDiagnostic
+/// object and collapses PathDiagosticPieces that are expanded by macros.
+static void CompactMacroExpandedPieces(PathPieces &path,
+ const SourceManager& SM) {
using MacroStackTy =
std::vector<
std::pair<std::shared_ptr<PathDiagnosticMacroPiece>, SourceLocation>>;
@@ -2454,7 +2458,7 @@
// Recursively compact calls.
if (auto *call = dyn_cast<PathDiagnosticCallPiece>(&*piece)) {
- CompactPathDiagnostic(call->path, SM);
+ CompactMacroExpandedPieces(call->path, SM);
}
// Get the location of the PathDiagnosticPiece.
Index: cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
@@ -464,6 +464,13 @@
return DisplayNotesAsEvents.getValue();
}
+bool AnalyzerOptions::shouldDisplayMacroExpansions() {
+ if (!DisplayMacroExpansions.hasValue())
+ DisplayMacroExpansions =
+ getBooleanOption("expand-macros", /*Default=*/false);
+ return DisplayMacroExpansions.getValue();
+}
+
bool AnalyzerOptions::shouldAggressivelySimplifyBinaryOperation() {
if (!AggressiveBinaryOperationSimplification.hasValue())
AggressiveBinaryOperationSimplification =
Index: cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
===================================================================
--- cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
+++ cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
@@ -307,6 +307,9 @@
/// \sa shouldDisplayNotesAsEvents
Optional<bool> DisplayNotesAsEvents;
+ /// \sa shouldDisplayMacroExpansions
+ Optional<bool> DisplayMacroExpansions;
+
/// \sa shouldAggressivelySimplifyBinaryOperation
Optional<bool> AggressiveBinaryOperationSimplification;
@@ -693,6 +696,13 @@
/// to false when unset.
bool shouldDisplayNotesAsEvents();
+ /// Returns true if macros related to the bugpath should be expanded and
+ /// included in the plist output.
+ ///
+ /// This is controlled by the 'expand-macros' option, which defaults to false
+ /// when unset.
+ bool shouldDisplayMacroExpansions();
+
/// Returns true if SValBuilder should rearrange comparisons and additive
/// operations of symbolic expressions which consist of a sum of a symbol and
/// a concrete integer into the format where symbols are on the left-hand
Index: cfe/trunk/test/Analysis/plist-macros-with-expansion.cpp
===================================================================
--- cfe/trunk/test/Analysis/plist-macros-with-expansion.cpp
+++ cfe/trunk/test/Analysis/plist-macros-with-expansion.cpp
@@ -0,0 +1,44 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s
+//
+// RUN: %clang_analyze_cc1 -analyzer-checker=core %s \
+// RUN: -analyzer-output=plist -o %t.plist \
+// RUN: -analyzer-config expand-macros=true
+//
+// Check the actual plist output.
+// RUN: cat %t.plist | %diff_plist \
+// RUN: %S/Inputs/expected-plists/plist-macros-with-expansion.cpp.plist
+//
+// Check the macro expansions from the plist output here, to make the test more
+// understandable.
+// RUN: FileCheck --input-file=%t.plist %s
+
+void print(const void*);
+
+//===----------------------------------------------------------------------===//
+// Tests for non-function-like macro expansions.
+//===----------------------------------------------------------------------===//
+
+#define SET_PTR_VAR_TO_NULL \
+ ptr = 0
+
+void nonFunctionLikeMacroTest() {
+ int *ptr;
+ SET_PTR_VAR_TO_NULL;
+ *ptr = 5; // expected-warning{{Dereference of null pointer}}
+}
+
+// CHECK: <key>name</key><string></string>
+// CHECK-NEXT: <key>expansion</key><string></string>
+
+#define NULL 0
+#define SET_PTR_VAR_TO_NULL_WITH_NESTED_MACRO \
+ ptr = NULL
+
+void nonFunctionLikeNestedMacroTest() {
+ int *ptr;
+ SET_PTR_VAR_TO_NULL_WITH_NESTED_MACRO;
+ *ptr = 5; // expected-warning{{Dereference of null pointer}}
+}
+
+// CHECK: <key>name</key><string></string>
+// CHECK-NEXT: <key>expansion</key><string></string>
Index: cfe/trunk/test/Analysis/Inputs/expected-plists/plist-macros-with-expansion.cpp.plist
===================================================================
--- cfe/trunk/test/Analysis/Inputs/expected-plists/plist-macros-with-expansion.cpp.plist
+++ cfe/trunk/test/Analysis/Inputs/expected-plists/plist-macros-with-expansion.cpp.plist
@@ -0,0 +1,351 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
+<plist version="1.0">
+<dict>
+ <key>diagnostics</key>
+ <array>
+ <dict>
+ <key>path</key>
+ <array>
+ <dict>
+ <key>kind</key><string>control</string>
+ <key>edges</key>
+ <array>
+ <dict>
+ <key>start</key>
+ <array>
+ <dict>
+ <key>line</key><integer>25</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>25</integer>
+ <key>col</key><integer>5</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ <key>end</key>
+ <array>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>21</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </dict>
+ </array>
+ </dict>
+ <dict>
+ <key>kind</key><string>event</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ranges</key>
+ <array>
+ <array>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>21</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </array>
+ <key>depth</key><integer>0</integer>
+ <key>extended_message</key>
+ <string>Null pointer value stored to 'ptr'</string>
+ <key>message</key>
+ <string>Null pointer value stored to 'ptr'</string>
+ </dict>
+ <dict>
+ <key>kind</key><string>control</string>
+ <key>edges</key>
+ <array>
+ <dict>
+ <key>start</key>
+ <array>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ <key>end</key>
+ <array>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </dict>
+ </array>
+ </dict>
+ <dict>
+ <key>kind</key><string>event</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ranges</key>
+ <array>
+ <array>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>4</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>6</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </array>
+ <key>depth</key><integer>0</integer>
+ <key>extended_message</key>
+ <string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ <key>message</key>
+ <string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ </dict>
+ </array>
+ <key>macro_expansions</key>
+ <array>
+ <dict>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>26</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>name</key><string></string>
+ <key>expansion</key><string></string>
+ </dict>
+ </array>
+ <key>description</key><string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ <key>category</key><string>Logic error</string>
+ <key>type</key><string>Dereference of null pointer</string>
+ <key>check_name</key><string>core.NullDereference</string>
+ <!-- This hash is experimental and going to change! -->
+ <key>issue_hash_content_of_line_in_context</key><string>f8fbc46cc5afbb056d92bd3d3d702781</string>
+ <key>issue_context_kind</key><string>function</string>
+ <key>issue_context</key><string>nonFunctionLikeMacroTest</string>
+ <key>issue_hash_function_offset</key><string>3</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>27</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ExecutedLines</key>
+ <dict>
+ <key>0</key>
+ <array>
+ <integer>24</integer>
+ <integer>25</integer>
+ <integer>26</integer>
+ <integer>27</integer>
+ </array>
+ </dict>
+ </dict>
+ <dict>
+ <key>path</key>
+ <array>
+ <dict>
+ <key>kind</key><string>control</string>
+ <key>edges</key>
+ <array>
+ <dict>
+ <key>start</key>
+ <array>
+ <dict>
+ <key>line</key><integer>38</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>38</integer>
+ <key>col</key><integer>5</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ <key>end</key>
+ <array>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>39</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </dict>
+ </array>
+ </dict>
+ <dict>
+ <key>kind</key><string>event</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ranges</key>
+ <array>
+ <array>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>39</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </array>
+ <key>depth</key><integer>0</integer>
+ <key>extended_message</key>
+ <string>Null pointer value stored to 'ptr'</string>
+ <key>message</key>
+ <string>Null pointer value stored to 'ptr'</string>
+ </dict>
+ <dict>
+ <key>kind</key><string>control</string>
+ <key>edges</key>
+ <array>
+ <dict>
+ <key>start</key>
+ <array>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ <key>end</key>
+ <array>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </dict>
+ </array>
+ </dict>
+ <dict>
+ <key>kind</key><string>event</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ranges</key>
+ <array>
+ <array>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>4</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>6</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ </array>
+ </array>
+ <key>depth</key><integer>0</integer>
+ <key>extended_message</key>
+ <string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ <key>message</key>
+ <string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ </dict>
+ </array>
+ <key>macro_expansions</key>
+ <array>
+ <dict>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>39</integer>
+ <key>col</key><integer>3</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>name</key><string></string>
+ <key>expansion</key><string></string>
+ </dict>
+ </array>
+ <key>description</key><string>Dereference of null pointer (loaded from variable 'ptr')</string>
+ <key>category</key><string>Logic error</string>
+ <key>type</key><string>Dereference of null pointer</string>
+ <key>check_name</key><string>core.NullDereference</string>
+ <!-- This hash is experimental and going to change! -->
+ <key>issue_hash_content_of_line_in_context</key><string>d5eba61193b41c27fc7b2705cbd607ba</string>
+ <key>issue_context_kind</key><string>function</string>
+ <key>issue_context</key><string>nonFunctionLikeNestedMacroTest</string>
+ <key>issue_hash_function_offset</key><string>3</string>
+ <key>location</key>
+ <dict>
+ <key>line</key><integer>40</integer>
+ <key>col</key><integer>8</integer>
+ <key>file</key><integer>0</integer>
+ </dict>
+ <key>ExecutedLines</key>
+ <dict>
+ <key>0</key>
+ <array>
+ <integer>37</integer>
+ <integer>38</integer>
+ <integer>39</integer>
+ <integer>40</integer>
+ </array>
+ </dict>
+ </dict>
+ </array>
+ <key>files</key>
+ <array>
+ <string>/home/eumakri/Documents/2codechecker_dev_env/llvm/tools/clang/test/Analysis/plist-macros-with-expansion.cpp</string>
+ </array>
+</dict>
+</plist>
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